body {
    margin: 0;
    font-family: 'Arial', sans-serif;
    background-color: #1b1b1b;
    color: white;
}

.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 200px;
    height: 100%;
    background-color: #b71c1c;
    padding: 20px;
    box-sizing: border-box;
}

.sidebar h1 {
    color: white;
    text-align: center;
}

.sidebar nav {
    margin-top: 30px;
    display: flex;
    flex-direction: column;
}

.sidebar nav a {
    color: white;
    text-decoration: none;
    padding: 10px;
    margin: 5px 0;
    background-color: #000;
    border-radius: 5px;
    text-align: center;
    transition: 0.3s;
}

.sidebar nav a:hover {
    background-color: #ff0000;
}

.content {
    margin-left: 220px;
    padding: 20px;
}

button#music-toggle {
    position: fixed;
    bottom: 20px;
    left: 220px;
    padding: 10px 20px;
    background-color: #b71c1c;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

button#music-toggle:hover {
    background-color: #ff0000;
}

.main-gif, .content img {
    max-width: 100%;
    border-radius: 10px;
}